Interlocking friction-clutch.



which, together with said annulus forms a y drlving member.

l ber isa disk 4, which forms part ofthe driven .engagement the friction clutch is first and partly in section,

4it mig ht equally well be considered the driven 4surface of the ril :and bears upon the conn;

UNITED sTATEs FRANK B. SMITH, OF PHILA PnTENT oEEIoE.

DELPHIA, PEN NSYLVANIA.

INTERLOCKING FRICTION-CL'UTCH.

To all whom it 'may Concern.'

Be it known that I, FRANK B. SMITH, a citizen of the United States, residing at the Normandie, Thirty-sixth and Chestnut streets, in the city of Philadelphia, county of Philadelphie, and State of Pennsylvania, have invented Certainnewand useful improvements in Interlocking VFriction- Clutoh es, whereof the following: is a specification, reference beingY had to theaeeompanjfingl drawings.

Mv invention relates to a combined interlocking and friction Clutch in which, during' the. operation of throwing the clutches into thrown into enf-agement and thereafter the toothed rluteh thrown iinto looking` enga;x ement, and, upon releasingr the clutch, the toothed clutch is first entirely freed before the friction clutch is released.` K

In the aecompanving drawings, i have illustrated a clutch which embodies my invention, and in Which'.-

Figure l, is a view partly in end elevation and Fig'. Il, is a seo-V tional view taken on the linell, Il, of Fig. I.

ln said iiiures, the shaft 1, for the purpose of description, is assumed to be the driving shaft, although it should be understmnlthat shaft. A H3T wheel or annulus 2, is secured to the driving shaft l, by means of bolts passing through a iflange on said shaft, or in any other suitable manner. Seeuredto the inner Vflat face of the annulus. 2, is a toothed disk 3,

lVlfithin 4said driving memmember. 'l`he outer face of thev disk 4, isY eonieal and upon the fac-e is 1m vably mounted a split ring 5forming a friction member and made of bronze or any other suitable material. 'l` his ring is held upon the diskA, by means of a 'screwl `or bolt 6. This screw passes through an eli-ingated slot in said ring, and the head of the screw is sunk below the tersunk portiono the ring which surrounds the slot 7, thus alloilring,lr the disk 4, to be moved longiludina'lly and ther-ebtr foree the split run@r outwardly against the inner periphery of the [ly wheel or annulns 2, whereby the friction nn-mibers ol lhe clutch become engaved. The ring' 5, is held against substantierl longitudinal movement between -the disk 3 and ashonlder onthe annulus but may' Specification of Letters Patent.

. longitudinally.

Patented Maly 4, 1909.

, 190e. serial Nn. 840,519.

be forced radially against the inside of the annulus as the conical fare of the disk 4, is moved 'lhe two ends of the split ring are kept inalinement bj: means of a key 8, best shown in Fig-g. i. Secured to rho disk 4, is a sleeve 9, provided with a square hole 10, throu h a portion of its lerrith, which thus allows the sleeve to slide on the squared portionof the driven shaft 11, without rotation thereon.

Shdably mounted on the sleevoQ, is a collar 12, having teeth 13, capable of (meage-- ment with similar teeth 14, on the inner fare `of the disk 2%. rl'he sleeve 9, is provided with a key 15,' which tits loosel)T in the keyway in the collar 12. Rotatribly mounted on a bearing' on the sleeve i), is a. thrust or shifting?y collar 16, by .means of which the toothed collar 12, and disk 4 are moved to eii'oet theA engagement and disengagement of the frirtion and looking' cxutrhes.

Serin-od 4to the inner fare of the web ol' the fly wheel or annulus 2, is a short shaft 17, which is in alinement with the driven shaft 1 1, and forms a bearing; for an internal entensionior boss 18, ofthe sleeve 9. Surrounding this `short shaft 17, and the boss 18, is a heavv coiled spring4 10, extending between the web of the annulus Lv-and a thrust bearingl 20, plaeedfon the boss 18. ,This spring tends normally to keep the friction members 4, 5, in engagement with the drvmflgg*r member .Z. Situated in de n'essions in the toothed Collar 13, and in similar depressions in the opposing;` faire of the disk 1, and extending between said oollar and disk are coiled springs 211' two being shown in this vase. "Fliese spring. are

denker than spring 19, and tend-normally to ,keep the rollar 1;?,and toothed disk 3, in looked ongagelnent. 'lhe distance between the inner web 22, of the toothed collar 12, and the opposing face 23, of the sleeve i), is

slightly greater than the loekinf.T depth of the teeth 1,3, 14, in order to allow these teeth to "be fully unlocked before the friction clutch is moved to eifeet disengagement between the' rin,fr 5, and Hy wheel 2. I

'l`he operation is as follows :-As shown in the drawings, the clutches are in envagement. To 'e'lfect (lisengagernent, the collar 16, is forced in the direction indicated by the'arrow in Fig. U., thereby moving the toothed collar 1'2, longitudinally against the thrust of the veiled springs 21, 21,. and since these s rings are weaker than spring 19, they wil oomprvss lxst and allow the looking teeth 13, 14,

to become disengaged. The-further move ment of Athecollar 16, in thefseme direction` fpmtsfmove together to overcome the resistance. of the s )ring 19, and thereby force the lFi disk-'4, to sli e in the same direction 5nd release the friction ring- 5, from the aliulus 2, whereuponI the parts constituting the driving members are free to rotate end those constituting the driven member remain stationery. To eilect the engagement of the clutch the coller 16, is moved in the direction oimsite to that indicated in the drawing w ereby-the friction `clutch is first fully engag'ed and then the locking clutch isengeged.

cleirmi 1. A clutch com rising an ennulus; a toothed disk secure to sind annulus; a friction member opposed to the inner periphery of said annulus; e sleeve slidably mounted ofi a shaft and secured to said friction member; e toothed collar slidsbly mounted about said sleeve and capable of engagement with said toothed disk Ineens for forcing seid friction member and annulus into engagement; and means for forcing seid.toothed sleeve and disk into locking engagement.

2. A clutch comprising en annulus; e toothed disk secured to sald aimulusg' afriction member opposed to the inner periphery of said annulus; a sleeve slidubly mounted on a shaft and secured to seid friction member; a toothed coller slidably mounted about said^sleeve and capable of engagement with said toothed disk; means for forcing seid friction member and ennulus into en egement; means for forcing seid toothed s eeve and disk into' locking engngenient; and means for disengagmg seid friction members vend seid toothed members.

3. A clutch comprisinif on annulus securedto ai shaft; a toothed dis secured to seid an i nulus; a friction member within said ennui lus; a sleeve slidably lilounted on a shaft;

end secured to said friction member; means interposed between said snnulus and sleeve `tending normellbr to keep said annulus and friction member in en agement; a. toothed coller slidebly mounted on seid sleeve and capable of lookin engagement with said toothed disk; en means interposed be tween seid sleeve and collar tendin normelly to keep said collar and toothed isk in Afriction member m engagement; s. toothed oollalr slidably mounted on said sleeve and capable of locking engagement with seid toothed disk; means interposed between iseid sleeve and collar tendin normell to keep seid collar and toothed isk in loc in engagement; and means for disengeging ssi friction members and said lookin members. 5. A-clutch comprisin ananndglus secured to a shaft a. toothed dis ,secured t0 said annulus; a lus; a sleeve 'slidably mounted on a shaft and secured to said friction member,l a spring interposed between said ennullus and sleeve tending normallyr to keep seid annulus and friction member in en agement; e toothed collar slidably mountengi on said sleeve and capable of locking engagement with said toothed disk; and e sprm inter osed b e-l tween said sleeve and col er ten( in normally to keep said collar and toothed r iskinl locking engagement. n

In testimony whereof I lieve hereunto signed my neme, et Phiiedelphia, Pennsylvenia., this twenty-second day of October,

f'riction member within seid snnui 

